National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

9°F

-13°C

Humidity 71%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 4 Dec 4:35 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Patchy freezing fog after 9pm. Increasing clouds, with a temperature falling to near -3 by 9pm, then rising to around 8 during the remainder of the night. Wind chill values as low as -18. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -3 °F⇑

    Patchy
    Freezing Fog

  • Friday

    Friday: Mostly sunny, with a high near 27. Wind chill values as low as -7. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 26. South southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Patchy Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 26. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 15. Calm wind becoming north northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    Low: 15 °F

    Chance Snow
    then Snow
    Likely

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Partly sunny, with a high near 21.

    High: 21 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow likely. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Snow Likely

Detailed Forecast

Tonight
Patchy freezing fog after 9pm. Increasing clouds, with a temperature falling to near -3 by 9pm, then rising to around 8 during the remainder of the night. Wind chill values as low as -18. South wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 27. Wind chill values as low as -7. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 26. South southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 26. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 15. Calm wind becoming north northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow before noon. Partly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 0.
Monday
Partly sunny, with a high near 20.
Monday Night
Snow likely. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 30.
Tuesday Night
Snow likely. Cloudy, with a low around 20.
Wednesday
Snow likely. Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 42°N 88.69°W
Last Update:
3:11 pm CST Dec 4, 2025
Forecast Valid:
4pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation